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Scientific American, Vol. 79, No. 22 (November 1898) (1898)

leaf 3

An illustration from Scientific American, Vol. 79, No. 22 (November 1898), 1898, leaf 3
To the shaft and to the gate, these dangers, Charles A. jointed levers are attached in the manner indicated. the ground to the top of the metal finial. The Hutchins, of Halifax, A second, longitudinal shaft is journaled at right height of the first stage, where the square form is angles to the… … top of the octagon, the cupola gracefully rises about AN AUTOMATIC SAFETY-GATE FOR BRIDGES. 52 feet, to a point on which is fixed a large round ball. The original plan contemplated a crowning feature of the second shaft is provided with a pinion adapted ornamental iron work, but this has been…

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